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Immutability of Strings in Java
... this code, for example:
String s1 = "Hello";
String s2 = s1;
// s1 and s2 now point at the same string - "Hello"
Now, there is nothing1 we could do to s1 that would affect the value of s2. They refer to the same object - the string "Hello" - but that object is immutable and thus cannot be altered....
shortcut for creating a Map from a List in groovy?
...e 1.8.1, 2011. The question was asked in 2008. But in any case, groupBy is now the way to go indeed.
– mvmn
Apr 1 '14 at 21:48
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Convert array to JSON
...] which holds a few integers.
I've added a few values to the array, but I now need to send this array to a page via jQuery's .get method. How can I convert it to a JSON object for sending?
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How to set initial value and auto increment in MySQL?
...ples that used these statements in a similar way, and they make more sense now. Thank you.
– Michael Hoffmann
Oct 21 '16 at 0:50
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How do I use method overloading in Python?
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@LegitStack I updated the code on GitHub, now it works with functions too.
– Ehsan Keshavarzian
Aug 6 '19 at 2:40
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Checkout one file from Subversion
... it's simpler to use svn export than it is to use the web interface, if I know what file I want. The questioner already uses SVN, so I guess it depends what client and whether that client makes it easy to use svn export. I do find the web interface better for browsing than svn ls, though :-)
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Difference between WAIT and BLOCKED thread states
... Assume there is only one thread and waited on some time in millis; now Is it possible a thread can directly from waiting state to go to runnable state? since no other thread takes lock here since only single threaded?
– Kanagavelu Sugumar
Jun 15 '16 at ...
Mercurial move changes to a new branch
...eans, revision 0 is the base on which you started to work on your feature. Now you want to have revisions 1-2 on a named branch, let's say my-feature. Update to revision 0 and create that branch:
$ hg up 0
$ hg branch my-feature
$ hg ci -m "start new branch my-feature"
The history now looks like ...
Automatically open Chrome developer tools when new tab/new window is opened
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UPDATE 2:
See this answer . - 2019-11-05
You can also now have it auto-open Developer Tools in Pop-ups if they were open where you opened them from. For example, if you do not have Dev Tools open and you get a popup, it won't open with Dev Tools. But if you Have Dev Tools Open a...
How can one change the timestamp of an old commit in Git?
...ill have to reset and pull, or delete and clone from scratch. As far as I know, there is no method that gets around this.
– EriF89
Sep 9 '14 at 9:12
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